package ch07.d2;
// Bird类实现Flyable接口
public class Bird implements Flyable,Swimable{
    @Override
    public void fly() {
        System.out.println("鸟儿在飞");
    }

    @Override
    public void f2() {

    }

    @Override
    public void f3() {

    }

    @Override
    public void swim() {

    }
}
